Онкогематология (Jul 2014)
Hematopoietic stem cell transplantation in juvenile myelomonocytic leukemia: analyse one centre experience and literature review
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is the standard curative therapy for juvenile myelomonocytic leukemia (JMML). Seventeen patients with JMML received myeloablative conditioning (busulfan-based — 15, treosulfan-based — 2). Donors included 5 matched related siblings, 8 — matched unrelated volunteer or cord blood (2), 4 — mismatched relatives. Primary engraftment was achieved in 75 %. The rate of acute GVHD grade II–IV was 58 %, grade III–IV — 23 %. Chronic GVHD occurred in 33 % of patients. Five JMML relapses occurred. Relapse-free survival is 66 ± 12 %. Four patients died of transplant-related complications. TRM was 28 ± 12 %.Five patients died of disease progression. Overall survival is 38 ± 13 % with median follow-up of 13 months. A review of most important publications related to HSCT in JMML is provided.